Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhanh lang » nhanh quang, nhanh thang, nhan dang
nguong dan » huong dan
cua trung » cua truong, xuan trung, cua nhung
lang cua » mang cua, hang cua, long cua
cong san » cong tac
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chinh sach)) - nhanh lang cua trung ((nguong dan) or (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - nhanh lang cua trung ((nguong dan) OR (cong san)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chinh sach)) - nhanh lang cua trung ((nguong dan) or (cong san)) toan tap*.